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 Air conditioner refill
#831615
08/19/07 10:09 PM
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Joined: Apr 2004
Posts: 1,494
OP
Body Damage is Cool
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I just changed from R12 to R134. <img src="/forums/images/graemlins/lol.gif" alt="" /> I removed the core from the tire valve type low pressure fitting and screwed on the proper R134 fitting. Then with $16 hose and gage, put in a few cans of R134 and a can of lubricant. Works great. The Montero system, even with the chevy compressor, is much colder than the chevy AC. <img src="/forums/images/graemlins/confused.gif" alt="" />
87 Raizer, 4.3V6, Mod TH700R4,231CHD, detroit rear and LSD front, bouncy seats, 2" lift and 32x15 BFG MT tires.
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Re: Air conditioner refill
[Re: BobShaw]
#831616
08/20/07 02:44 PM
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Joined: Jan 2003
Posts: 410
Mudrunner
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Hey Bob, did you run a vacuum on the system, or have a shop pull a vacuum on your trucks a/c system before filling it with freon? If not, plan on having someone pull the freon out with a storage/recovery machine, then they'll pull and hold a vacuum on the system for 1/2 hour most likely. This will remove moisture from your A/C system. If you skip this step, corrosion and rust will occur inside the system over time. <img src="/forums/images/graemlins/patriot.gif" alt="" /> Anyway, congrats on the conversion, I keep threatening to swap my '92 over, but my R-12 stock system cools so well after replacing the leaking evaporator that I haven't done it yet.
'92 SR Montero, Green, with 31" Yokohama Geolandar A/T Plus Tires, Mitsu factory fog light kit, on-board air compressor,Sony Radio and 10 disc changer. 213K and counting.....
Stock & Happy otherwise
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 Re: Air conditioner refill
[Re: Houston]
#831617
08/20/07 02:47 PM
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Joined: Dec 2000
Posts: 6,896
Trail Leader
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Yeah, did you vacuum it out?
I am running Freeze12 in my 91. Blows nice and cold.
I just want to tell you both good luck, and we're all counting on you.
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Re: Air conditioner refill
[Re: sparkem]
#831618
08/20/07 03:40 PM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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Running an evac on the system is the best way to do it. But, if the the drier is/was in good shape, the dessicant in it will take care of the moisture. I've "retro'ed" a/c's before by purging out the high side whilst filling on the low side.
Fasteddy's advice is occasionally sound...
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Re: Air conditioner refill
[Re: hazy_daze]
#831619
08/20/07 04:03 PM
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Joined: Mar 2005
Posts: 1,006
Body Damage is Cool
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I've "retro'ed" a/c's before by purging out the high side whilst filling on the low side. So you're the guy who destroyed the ozone layer. I wondered who did it.
92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles
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Re: Air conditioner refill
[Re: pcc]
#831620
08/20/07 04:26 PM
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Joined: Dec 2000
Posts: 6,896
Trail Leader
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I've "retro'ed" a/c's before by purging out the high side whilst filling on the low side. So you're the guy who destroyed the ozone layer. I wondered who did it. Ha. I did not know you could do that. I never really thought of it. I think it was on Dirty Jobs, they were at a scrap yard, and one of the workers just opened up a ac system.
I just want to tell you both good luck, and we're all counting on you.
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Re: Air conditioner refill
[Re: pcc]
#831621
08/20/07 04:54 PM
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Joined: May 2007
Posts: 4,628
Roll Me Over
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I've "retro'ed" a/c's before by purging out the high side whilst filling on the low side. So you're the guy who destroyed the ozone layer. I wondered who did it. <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> ,,!,, ,,!,, <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> That's me <img src="/forums/images/graemlins/smile.gif" alt="" />
Fasteddy's advice is occasionally sound...
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